업로드 파일명 처리 관련 버그 수정

xpressengine/xe-core#2008
xpressengine/xe-core#2269

common/framework/filters/filenamefilter.php

@@ -30,6 +30,9 @@ class FilenameFilter
 		$filename = trim($filename, ' .-_');
 		$filename = preg_replace('/__+/', '_', $filename);
 		
+		// Clean up unnecessary encodings.
+		$filename = strtr($filename, array('&' => '&'));
+		
 		// Change .php files to .phps to make them non-executable.
 		if (strtolower(substr($filename, strlen($filename) - 4)) === '.php')
 		{

common/framework/ua.php

@@ -366,7 +366,7 @@ class UA
 				
 			case 'rfc5987':
 				$filename = rawurlencode($filename);
-				return "filename*=UTF-8''" . $filename . '; filename="' . $filename . '"';
+				return "filename*=UTF-8''" . $filename;
 				
 			case 'old_ie':
 			default:

common/js/plugins/jquery.fileupload/js/main.js

@@ -386,7 +386,8 @@
 
 					data.files[file.file_srl] = file;
 					$container.data(data);
-
+					
+					file.source_filename = file.source_filename.replace("&", "&");
 					if(/\.(jpe?g|png|gif)$/i.test(file.source_filename)) {
 						result_image.push(template_fileimte_image(file));
 					}